16-288257-C-T

Variant names:

• chr16-288257-C-T
• rs768762328
• NM_003502.4:c.2463-9G>A

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_003502.4(AXIN1):​c.2463-9G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,613,340 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 34)
  • Exomes 𝑓: 0.000050 (0 hom.)
• Consequence: AXIN1 NM_003502.4 intron
• Scores: Splicing: ADA: 0.00005591
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: 0.143
• Publications: 0 publications found

Genes affected

AXIN1 (HGNC:903): (axin 1) This gene encodes a cytoplasmic protein which contains a regulation of G-protein signaling (RGS) domain and a dishevelled and axin (DIX) domain. The encoded protein interacts with adenomatosis polyposis coli, catenin beta-1, glycogen synthase kinase 3 beta, protein phosphate 2, and itself. This protein functions as a negative regulator of the wingless-type MMTV integration site family, member 1 (WNT) signaling pathway and can induce apoptosis. The crystal structure of a portion of this protein, alone and in a complex with other proteins, has been resolved. Mutations in this gene have been associated with hepatocellular carcinoma, hepatoblastomas, ovarian endometriod adenocarcinomas, and medullablastomas. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

AXIN1 Gene-Disease associations (from GenCC):

• caudal duplication

  Inheritance: AD Classification: LIMITED Submitted by: G2P
• colorectal adenoma

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Benign. The variant received -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BP6: Variant 16-288257-C-T is Benign according to our data. Variant chr16-288257-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3039223.Status of the report is no_assertion_criteria_provided, 0 stars.
• BS2: High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AXIN1	NM_003502.4	c.2463-9G>A		intron_variant	Intron 10 of 10	ENST00000262320.8	NP_003493.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AXIN1	ENST00000262320.8	c.2463-9G>A		intron_variant	Intron 10 of 10	1	NM_003502.4	ENSP00000262320.3
AXIN1	ENST00000354866.7	c.2355-9G>A		intron_variant	Intron 9 of 9	1		ENSP00000346935.3
AXIN1	ENST00000457798.1	c.265G>A	p.Val89Ile	missense_variant	Exon 3 of 3	3		ENSP00000416835.1
AXIN1	ENST00000461023.5	n.5532-9G>A		intron_variant	Intron 7 of 7	2

Frequencies

GnomAD3 genomes AF: 0.0000328 AC: 5 AN: 152212 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000262

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.000478

GnomAD2 exomes AF: 0.000205 AC: 51 AN: 248488 AF XY: 0.000163

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00133

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000270

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000500 AC: 73 AN: 1461128 Hom.: 0 Cov.: 31 AF XY: 0.0000399 AC XY: 29 AN XY: 726864

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00107 AC: 48 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000580 AC: 5 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52724

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000180 AC: 20 AN: 1111964

Other (OTH) AF: 0.00 AC: 0 AN: 60384

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152212 Hom.: 0 Cov.: 34 AF XY: 0.0000134 AC XY: 1 AN XY: 74360

African (AFR) AF: 0.00 AC: 0 AN: 41466

American (AMR) AF: 0.000262 AC: 4 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.000478 AC: 1 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000793

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

AXIN1-related disorder Benign:1

Jan 03, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	1.7
DANN	Benign	0.83
PhyloP100		0.14
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000056
dbscSNV1_RF	Benign	0.0020
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs768762328; hg19: chr16-338257;